The first country the USA attacked during WW2 was the country that had attacked them, Japan. First action against Japan was the doolittle raid on April 18 1942 where a few American bombers bombed Tokyo.
AnswerPoland attacked the Nazis first during World War 2.
france
Poland
World War 2 started when Germany invaded Poland on September 1, 1939 and then England & France declared War on Germany.
Pearl Harbour in Hawaii on 7 December 1941
Poland was the first country to be attacked during World War 2. In fact, the Germany invasion of Poland was what CAUSED World War 2.
AnswerPoland attacked the Nazis first during World War 2.
No country attacked Germany in World War 2 (which you seem to be confusing with the Holocaust). Germany was the aggressor.
Japan
france
Germany attacked Poland to start WW2 .
Germany attacked France by invading through the north of Belgium. Poland was attacked by Germany to start world war 2.
Pearl Harbor
Germany invaded Poland.
hitler
Rhinelands or the western side of Germany
France and Great Britain allied with Serbian during World War 1. Serbia was the first country to be attacked in World War 1.